Visible-light photoredox catalyzed radical cation-radical coupling reaction

2021 Fiscal Year Final Research Report

• Project/Area Number: 19K15570
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 33020:Synthetic organic chemistry-related
• Research Institution: Gakushuin University
• Principal Investigator: Tatsuya Morofuji 学習院大学, 理学部, 助教 (20824064)
• Project Period (FY): 2019-04-01 – 2022-03-31
• Keywords: ラジカルカチオン / ラジカル

Outline of Final Research Achievements

This study was conducted to develop radical cation-radical couplings, in which radical cation species generated by visible light redox catalysts react with radical species. Although we could not achieve the desired reaction, we found new concepts of photocatalysis such as "photocatalysis using hill-climb type electron transfer," "photocatalysis using silicate with C,O bidentate ligands as radical source," and "protonation-enhanced reactivity of triplet state".

Free Research Field

有機化学

Academic Significance and Societal Importance of the Research Achievements

本研究で見出すことができた「ヒルクライム型電子移動を利用した光触媒反応」、「炭素,酸素二座配位子を有するシリカートをラジカル源とした光触媒反応」、「プロトン化による三重項の反応性向上」は、有機合成化学における光触媒反応を設計する新たな指針になると期待できる。将来的には医薬・農薬・機能性材料への応用が可能な手法への展開が望まれる。